Panic disorder is characterized by uncontrollable, recurrent episodes of panic and fear that peak within minutes. Panic attacks are accompanied by physical manifestations, such as heart palpitations, sweating, and dizziness as well as the fear of dying or becoming insane. Worry about having an attack may lead to additional anxiety and avoidance behaviors or to other problems in functioning.

The cognitive effects of anxiety may include thoughts about suspected dangers, such as fear of dying. "You may ... fear that the chest pains are a deadly heart attack or that the shooting pains in your head are the result of a tumor or an aneurysm. You feel an intense fear when you think of dying, or you may think of it more often than normal, or can't get it out of your mind."[22]

These attacks are a symptom of panic disorder, a type of anxiety disorder that affects some 2.4 million U.S. adults. The disorder most often begins during the late teens and early adulthood and strikes twice as many American women as men. No one knows what causes panic disorder, though researchers suspect a combination of biological and environmental factors, including family history (panic disorder seems to run in families), stressful life events, drug and alcohol abuse, and thinking patterns that exaggerate normal physical reactions.

A phobia is an unrealistic or exaggerated fear of a specific object, activity, or situation that in reality presents little to no danger. Common phobias include fear of animals (such as snakes and spiders), fear of flying, and fear of heights. In the case of a severe phobia, you might go to extreme lengths to avoid the thing you fear. Unfortunately, avoidance only strengthens the phobia.
But over time, you may find yourself experiencing more panic attacks, in a variety of circumstances. Most of these will not be entirely unexpected. Most subsequent attacks occur in response to various cues such as entering a crowded area; a traffic jam; or simply worrying about having a panic attack. But there may still be some surprises: for instance, you might have a nocturnal panic attack, which wakes you out of a sound sleep. Or you might find yourself experiencing odd feelings of depersonalization as you kill some time with friends or colleagues.
Poor coping skills (e.g., rigidity/inflexible problem solving, denial, avoidance, impulsivity, extreme self-expectation, negative thoughts, affective instability, and inability to focus on problems) are associated with anxiety. Anxiety is also linked and perpetuated by the person's own pessimistic outcome expectancy and how they cope with feedback negativity.[83] Temperament (e.g., neuroticism)[41] and attitudes (e.g. pessimism) have been found to be risk factors for anxiety.[57][84]
Exposure therapy has been around for a long time. It involves exposing the patient in a safe and controlled environment to physical sensations they experience during a panic attack much the same way you‘d expose in small increments a person with a fear of trains or puppies or snakes to the things that scares them. With panic disorder, there’s often a heightened sensitivity to ordinary physical sensations such as racing heart, stomach ache or feeling faint. In exposure therapy, the therapist will ask you to mimic activities—like running around or doing jumping jacks or holding your breath—to cause panic symptoms. The idea is that by repeating the things that may trigger a panic attack those triggers will eventually lose their power.
In order to manage threatening situations, humans have evolved to experience a "fight or flight" response. As part of this response, when humans are confronted with a dangerous situation, their body mobilizes by sending blood away from their extremities (e.g. hands and feet) and into the major muscles, producing adrenaline, and increasing heart rate so that we are better equipped to fight off danger.
Generalized anxiety disorder involves persistent and excessive worry that interferes with daily activities. This ongoing worry and tension may be accompanied by physical symptoms, such as restlessness, feeling on edge or easily fatigued, difficulty concentrating, muscle tension or problems sleeping. Often the worries focus on everyday things such as job responsibilities, family health or minor matters such as chores, car repairs, or appointments.

Many medical conditions can cause anxiety. This includes conditions that affect the ability to breathe, like COPD and asthma, and the difficulty in breathing that often occurs near death.[63][64][65] Conditions that cause abdominal pain or chest pain can cause anxiety and may in some cases be a somatization of anxiety;[66][67] the same is true for some sexual dysfunctions.[68][69] Conditions that affect the face or the skin can cause social anxiety especially among adolescents,[70] and developmental disabilities often lead to social anxiety for children as well.[71] Life-threatening conditions like cancer also cause anxiety.[72]

Although many people breathe into a paper bag in an attempt to alleviate the hyperventilation that can be associated with panic, the benefit received may be the result of the individual thinking it will help (a placebo effect). Unfortunately, breathing into a paper bag while having trouble breathing can worsen symptoms when the hyperventilation is caused by a condition associated with oxygen deprivation, like an asthma attack or a heart attack.
People who have had a panic attack in certain situations may develop irrational fears, called phobias, of these situations and begin to avoid them. Eventually, the pattern of avoidance and level of anxiety about another attack may reach the point where individuals with panic disorder are unable to drive or even step out of the house. At this stage, the person is said to have panic disorder with agoraphobia.
Panic attacks are often confusing for the sufferer. They are usually sudden and are accompanied by extremely intense physical sensations, leaving one to believe they may have a serious medical condition. Because the physical symptoms associated with a panic attack are similar to certain serious medical conditions, it is important to rule out any medical causes.

Those who experience anxiety attack disorder are not alone. It’s estimated that 19 percent of the North American adult population (ages 18 to 54) experiences an anxiety disorder, and 3 percent of the North American adult population experiences anxiety attack disorder. We believe that number is much higher, since many conditions go undiagnosed and unreported.

If you think a friend or colleague at work is experiencing an anxiety disorder or other mental health difficulty, you should carefully consider how you react. Your actions in the workplace can have work-related and legal consequences. However, intervening early before an emergency situation arises can help prevent greater consequences for your colleague's career, health, and safety.
If you're having lots of panic attacks at unpredictable times and there doesn't seem to be a particular trigger or cause, you might be given a diagnosis of panic disorder. It's common to experience panic disorder and agoraphobia (a type of phobia) together. People who experience panic disorder may have some periods with few or no panic attacks, but have lots at other times.
Watch: Bullying Exerts Psychological Effects into Adulthood: Once considered a childhood rite of passage, bullying is no longer seen as benign. Its effects linger well into adulthood. Bullies and victims alike are at risk for psychiatric problems such as anxiety, depression, substance misuse, and suicide when they become adults, according to a study partially funded by the NIMH that was published in the April 2013 issue of JAMA Psychiatry.

While the term "test anxiety" refers specifically to students,[29] many workers share the same experience with regard to their career or profession. The fear of failing at a task and being negatively evaluated for failure can have a similarly negative effect on the adult.[30] Management of test anxiety focuses on achieving relaxation and developing mechanisms to manage anxiety.[29]

Before SSRIs and SSNRIs became available, medications from the group known as the tricyclic antidepressants (TCAs) were often used to address panic disorder. Although TCAs have been found to be equally effective in treating panic attacks, SSRIs and SSNRIs have been proven to be safer and better tolerated. Therefore TCAs are used much less often than they were previously.

In particular, the doctor will be concerned with the person's past medical history, past history of any mental illness, and any surgery the person may have had. In addition to exploring whether the person suffers from any other mental illness, the practitioner often explores whether the panic attack sufferer has a specific anxiety disorder in addition to or instead of panic disorder, like post traumatic stress disorder (PTSD), phobias, obsessive compulsive disorder, or generalized anxiety disorder.

Social Anxiety Disorder;Fear of social situations in which the person is exposed to unfamiliar people or to possible scrutiny by others. The individual fears that he or she will act in a way (or show anxiety symptoms) that will be embarrassing and humiliating, often times leading to avoidance of social situations and severe distress when participation in social situations can't be avoided. [2]

Poor coping skills (e.g., rigidity/inflexible problem solving, denial, avoidance, impulsivity, extreme self-expectation, negative thoughts, affective instability, and inability to focus on problems) are associated with anxiety. Anxiety is also linked and perpetuated by the person's own pessimistic outcome expectancy and how they cope with feedback negativity.[83] Temperament (e.g., neuroticism)[41] and attitudes (e.g. pessimism) have been found to be risk factors for anxiety.[57][84]

About 2-3% of Americans experience panic disorder in a given year and it is twice as common in women than in men. Panic disorder can interfere a lot with daily life, causing people to miss work, go to many doctor visits, and avoid situations where they fear they might experience a panic attack. The interference is greatest when people also have agoraphobia, as well as panic disorder.

Anxiety disorders are the most common mental health disorder in the U.S., affecting more than 18% of the population. They are even more common among children, affecting an estimated 25% of children between the ages of 13 and 18. The most common anxiety disorders are Specific Phobias, affecting 8.7% of the population, and Social Anxiety, affecting 6.8% of the population.

Generalized Anxiety Disorder is different than having a phobia about something. People with phobias are fearful of something in particular – for example, spiders, heights, or speaking in public. If you have Generalized Anxiety Disorder, you have an uneasy feeling about life in general. Often associated with feelings of dread or unease, you are in a state of constant worry over everything. If a friend doesn’t call you back within an hour, you may start to worry you did something wrong and the friend is upset with you. If you are waiting for someone to pick you up and he is a few minutes late – you may start to fear the worst – that he was in an accident, instead of thinking something more minor, like he got stuck in traffic. The feelings are not as intense as those that occur during a panic attack episode; however, the feelings are long-lasting. This results in having anxiety toward your life in general and the inability to relax – what some may consider far more debilitating than a specific phobia to a certain thing or situation, which you could possible avoid. There is no “off” switch. If you are suffering from Generalized Anxiety Disorder, you are experiencing a constant state of worry – and you cannot avoid it, because life, in general, is causing you anxiety.
Cognitive Behavioral Therapy (CBT) is considered to be the gold standard of treatment, especially for panic disorder. CBT focuses on educating clients about their disorders, identifying and changing maladaptive thoughts and fears, learning relaxation and other coping strategies, and helping clients face their fears. Research has shown that CBT for panic disorder is also effective when there are other comorbid disorders present as well and that the key component that makes CBT effective is the exposure ("facing your fears") module (Hofmann, 2011).
These episodes are a serious health problem in the U.S. At least 20% of adult Americans, or about 60 million people, will suffer from panic at some point in their lives. About 1.7% of adult Americans, or about 3 million people, will have full-blown panic disorder at some time in their lives, women twice as often as men. The most common age at which people have their first panic attack (onset) is between 15 and 19 years of age. Panic attacks are significantly different from other types of anxiety, in that panic attacks are very sudden and often unexpected, appear to be unprovoked, and are often disabling.
Because symptoms are so severe, many people who experience a panic attack may believe they are having a heart attack or other life-threatening illness and may go to a hospital ER. Panic attacks may be expected, such as a response to a feared object, or unexpected, apparently occurring for no reason. The mean age for onset of panic disorder is 22-23. Panic attacks may occur with other mental disorders such as depression or PTSD.
Cognitive behavioral therapy focuses on the thinking patterns and behaviors that are sustaining or triggering your panic attacks and helps you look at your fears in a more realistic light. For example, if you had a panic attack while driving, what is the worst thing that would really happen? While you might have to pull over to the side of the road, you are not likely to crash your car or have a heart attack. Once you learn that nothing truly disastrous is going to happen, the experience of panic becomes less terrifying.
Some people with anxiety disorders might benefit from joining a self-help or support group and sharing their problems and achievements with others. Internet chat rooms might also be useful, but any advice received over the internet should be used with caution, as Internet acquaintances have usually never seen each other and what has helped one person is not necessarily what is best for another. You should always check with your doctor before following any treatment advice found on the internet. Talking with a trusted friend or member of the clergy can also provide support, but it is not necessarily a sufficient alternative to care from a doctor or other health professional.